Abstract: With the advantages of lightweight，space integration，re-usability，large drag area and lift coefficient，the flexible wing structure aircraft can achieve functions such as cruise flight，low-speed hovering，re-entry and return，aerodynamic deceleration，fixed point homing and landing buffering，which is currently a research hot spot.Intelligent control system is one of the core technologies of the flight and recovery system of flexible wing structure aircraft.Combined with the application research and engineering practice of intelligent technology in the control system，the intelligent control system and its technical characteristics of the flexible wing structure aircraft are analyzed.The key technologies such as integrated control and simulation of rigid-flexible combination，environmental perception and online health status assessment，trajectory planning and tracking control，cluster flight control，intelligent control of landing and buffering，fault tolerance and reconstruction of intelligent hardware are introduced.The future development of the intelligent control system of flexible wing structure aircraft is considered.Some development suggestions are put forward，such as intelligent and flexible perception of flight environment，online identification of aerodynamic parameters，autonomous execution of multi-task mode and evolutionary learning of the control system.Through continuous research and practice of intelligent control technology，strong support is provided for the development of flexible wing structure aircraft system.

Key words: flexible wing structure, aircraft, intelligent control, key technologies, observation-evolution-decision-action